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Re: Cluster Size

On Fri, 27 Apr 2001, Roy Ladner wrote:
> Can anyone give any advice on configuring the config.properties cluster
> size, cluster space size and cluster size ratio?
> When I've tried to import a large data set into Ozone I've run into the
> problem of losing data (null values showing up after a commit).  When
> I've increased the cluster space size and cluster size, this problem
> stopped, but then there are times when the server simply shuts down - no
> error messages are given.  Should these numbers be set in relation to
> the size of the data set being imported into Ozone?

ozoneDB.wizardStore.clusterSize = 65536  -- the max size of each cluster

ozoneDB.wizardStore.clusterSizeRatio = 256  -- the expected size of each
object; helps the kernel to determine the size of newly created objects

The size of the data is not that important - more the size of the objects and
the  granularity of your problem in general. Clusters loaded or locked when one
object of the cluster is loaded or locked.

Falko Braeutigam                              mailto:falko@smb-tec.com
SMB GmbH                                        http://www.smb-tec.com